Find the same behaviour today, please help us

Not reproducible with the following code.  Would you provide a reproducible HTML/JavaScript code please?

---------------------------------------------
<form method="post" action="http://httpbin.org/post">
<input type=submit>
<label><input type=checkbox checked> preventDefault</label>
</form>

<script>
document.querySelector('form').addEventListener('submit', (event) => {
  if (document.querySelector('input[type=checkbox]').checked) {
    event.preventDefault();
    log('Prevented');
  }
});

function log(str) {
  document.querySelector('pre').textContent += str + '\n';
}
</script>
<pre></pre>
---------------------------------------------

Well, I should have included more info:

I'm using jsPDF and after I save a document, that's when I can't submit the form. Not sure if it's a bug but I'm sure it didn't happen before.

Thank you for providing more feedback. Adding the requester to the cc list.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

fernando88osuna@ Thanks for the feedback.

As per comment #3, request you to provide a sample File/URL where this issue can be reproduced, which will help in further triaging of the issue.

Thanks..

Reporter, we still need complete steps to reproduce the issue.

Thank you for providing more feedback. Adding the requester to the cc list.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

As per comment #8, we still need the repro steps to reproduce the issue.
Hence adding 'Needs-Feedback' label and removing the 'Needs-Bisect' label as exact steps are not available to reproduce the issue.

Please feel free to add the 'Needs-Bisect' label once the complete steps are provided.

Thanks..

The NextAction date has arrived: 2018-04-12

We don't have enough information to investigate this.  Closing.